Descendants of Khoo Teck Puat, one of Singapore's most successful bankers, who passed away in 2004. Family, which includes 14 children, sold its 12% stake in U.K. bank Standard Chartered in March to Temasek Holdings for estimated $4 billion; also has at least $1 billion in hotels and other investments, including 5-star Goodwood Park. Daughters Mavis and Elizabeth involved in the hotels. Youngest son, Eric, is noted local filmmaker.

To compile this list we looked at shareholdings in publicly traded companies as well as in private company filings. For people with publicly traded fortunes net worths were calculated using current share prices and exchange rates. For privately held fortunes we estimated what they would be worth if public.